Occurred on April 12, 2019 / Yellowstone National Park, USA
Info from Licensor: "I was filming wolves early in the morning in Yellowstone. When the first wolves I saw finally left, I decided to head home. As I was driving I saw this white wolf. I got out of my car, walked up a hill and couldn’t believe what I was seeing. Two wolves attacking this bull elk! I filmed until the black wolf noticed me and ran off. The bull elk laid down exhausted, and I eventually headed home."